as for your personal experiences, I have found it's best to simply ignore these bits of input most of the time as there isn't much value in this opinion-based information compared to actual empirical data/evidence etc. If you have such data, that would be helpful.
I do know that there are MANY folks have (or at least used to) shoot 175 SMKs with VERY warm loadings of slower burning powders in M1As and their only complaint was their bedding had to be re-done a good bit to deal with the recoil. None of these folks ever mentioned any gas/op-rod issues to moi.
Thanks for all the responses. I think I've got my M14 load and that's what the initial question was about. I also have my M1 load figured out. I figure that if I want more velocity, power, and or heavier bullets I'll got to a nice heavy barreled 338 Lapua or Ultramag bolt gun. My M14 and M1s are too special to me to try and eak out the max velocities and bullet weights. They're just fun shooters and I find them accurate enough for my purposes. Madsenshooter, do you really shoot 210gr lead bullets out of your M1 or were you just making a point? Thanks again guys.
I really shoot them. They're a very hard cast alloy, 23BHN that will respond to further heat treatment. I go a lot on what parashooter says when it comes to gas volume. Just wanted to see who would jump in and say the bullet was too heavy, the powder too slow. I have an adjustable gas plug, or rather one with changeable jets, but by keeping within the parameters parashooter has posted it isn't necessary to use it.
"I have sworn upon the Altar of God, eternity hostility upon all forms of tyranny over the minds of man." - Thomas Jefferson
I'm going to back Mark here and suggest you look in the CMP rulebook available at the CMP website as far as the gas system needing to be functional. Likewise if you knew about the common "national match" modifications done to M14's, you'd know that the spindle is locked in place (open) if one unitizes the gas cylinder. (As described in both Duff's and Kulnhausen's books)
As far as your comment, If the AMMO IS SAFE IN ANY RIFLE, it is SAFE in an M14/M1A. That is a dangerous, blanket statement. The M14, like any semi-auto rifle is designed to operate in a range of pressure or pressure curves. If you in any sort of way get too far from that range, you will have a problem. The OP is safely somewhere in there. Your blanket statement is not. There are several books about the M14/M1A out there. The ones I have (Kulnhausen, Duff and Zediker) all talk about the reloading for the M14, you should read them.
Last edited by BigMo; 02-19-2010 at 02:27.
Ok, since you have no experience with what you are trying to talk about, i'll repeat my advice to you. Get Kulnhausens book and read Zedikers chapter on reloading the M14. They will answer your questions. Just read the books.
BTW- your friends experiences with having to redo the bedding in their rifles alot due to the battering by the "warm" 175gr loads is why they modified the gas plug like Mark mentions. If you had any experience with this type of shooting, you would have understood that.
Last edited by BigMo; 02-19-2010 at 08:40.
"...M14/M1A..." They're not the same thing. An M14 was a battle rifle adopted for political reasons. An M1A is a commercial hunting/sporting rifle. Using handloads in an M1A voids SA Inc.'s warrantee. Neither has anything to do with an M1 Rifle gas system.
Completely different from an M14's gas system.
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